High-salt, high-ammonia-nitrogen and high-hardness wastewater treatment system

Abstract

The invention discloses a high-salt, high-ammonia-nitrogen and high-hardness wastewater treatment system. The system comprises a wastewater buffer pool, a collection pool, a flocculation sedimentation pool, an ammonia distillation device, an ammonium sulfate production device, a clean water pool and a deep treatment mechanism; the water outlet of the wastewater buffer pool is communicated with the water inlet of the collection pool, the water outlet of the collection pool is communicated with the water inlet of the flocculation sedimentation pool, the clear water outlet of the flocculation sedimentation pool is communicated with the water inlet of the ammonia distillation device, the gas outlet of the ammonia distillation device is communicated with the gas inlet of the ammonium sulfate production device, and the water outlet of the ammonia distillation device is communicated with the water inlet of the clear water pool; the water outlet of the clean water tank is communicated with the water inlet of the advanced treatment mechanism; and the clean water pool is provided with an acid liquor conveying port and an alkali liquor conveying port. The problems that in the prior art, a high-salt, high-ammonia-nitrogen and high-hardness wastewater treatment method is large in treatment energy consumption, precipitates are prone to blockage, and the water recycling rate is low are solved. The system is simple in structure, low in treatment energy consumption, easy to maintain, reasonable in structural design and capable of meeting the requirement for wastewater treatment.

Description

technical field [0001] The application belongs to the technical field of wastewater treatment, and in particular relates to a high-salt, high-ammonia-nitrogen, and high-hardness wastewater treatment system. Background technique [0002] In the production process of coal chemical industry, petrochemical industry and other industries, a large amount of high salt content, high hardness, high ammonia nitrogen, complex composition and difficult to handle will be produced. At present, there are many treatment methods for high-hardness, high-ammonia-nitrogen, high-alkalinity, and high-salt industrial wastewater at home and abroad. For example, the use of reaction tanks and sedimentation tanks has the advantages of low energy consumption and simple operation and management. However, the treatment facilities occupy a large area. The sedimentation sludge is easy to block, resulting in poor sludge discharge and other shortcomings. Mechanical accelerated clarifiers, hydraulic circulati...

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Problems solved by technology

[0003] The embodiment of the present application provides a high-salt, high-ammonia-nitrogen, and high-hardness wastewater treatment system to solve the problems of high-salt, high-ammonia, nitrogen, and high-hardness wastewater treatment methods in the prior art, such as high energy consumption, easy blockage of sediment, and low water reuse rate.

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